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主席致辞

辐射防护 2004年第Z1期24卷 52-56页

作者： lars-erik holm

　　部长夫人,部长阁下,尊敬的各位来宾,亲爱的同事们,热烈欢迎大家参加本次电离辐射效应环境保护国际大会.……

关键词：环境保护国际大会辐射效应部长来宾电离

The 2006 ICRP Recommendations of the International Commission on Radiological Protection

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The 2006 ICRP Recommendations of the International Commissio...

The Second Asian and Oceanic Congress for Radiation Protection

作者： lars-erik holm Chairman of ICRP Swedish Radiation Protection Authority 171 16 STOCKHOLM Sweden

The current recommendations of the International Commission on Radiological Protection （ICRP） were published in 1991. Since then, ICRP has published additional recommendations, and the system of protection has become increasingly complex. New scientific data have made it necessary to update the biological and physical assumptions underlying the recommendations. The Commission has decided to revise its recommendations while at the same time maintaining stability with the previous recommendations. The international consultation on the draft recommendations has involved health physics professionals all around the world. A revised draft was be put on ICRP’s website for consultation during the summer of 2006. When ICRP adopts its revised recommendations, 16 years would have passed since the 1990 recommendations were adopted.

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ICRP与非人类物种辐射防护

辐射防护通讯 2005年第2期25卷 57-61页

作者： lars-erik holm 郝建中国际放射防护委员会

迄今为止,ICRP还没有发表过关于如何评价和管理非人类物种辐射效应的建议。现已经决定建立评价非人类物种辐射效应的体系,以填补辐射防护概念上的空白。拟建立的体系不是为了制定审管标准,而是为了提供指导,从而有助于审管部门和运营部... 详细信息

迄今为止,ICRP还没有发表过关于如何评价和管理非人类物种辐射效应的建议。现已经决定建立评价非人类物种辐射效应的体系,以填补辐射防护概念上的空白。拟建立的体系不是为了制定审管标准,而是为了提供指导,从而有助于审管部门和运营部门证实自己遵守了现行的法律。ICRP将建立一套参考动植物及相关数据库,以便作为从根本上更多地认识和解释照射和剂量的关系、剂量和某些类型的效应关系的基础。这个概念类似于人类辐射防护所用的参考人概念,目的是作为计算和决策的依据。委员会已经设立了一个新的任务组,继续工作,以确定感兴趣的效应终点、ICRP要用的参考生物类型,以及一套用以评价和管理非人类物种辐射照射的参考剂量模型。

关键词： ICRP 非人类物种辐射效应评价框架参考剂量模型

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ICRP与非人类物种辐射防护

辐射防护通讯 2005年第3期25卷 57-61页

作者： lars-erik holm 郝建中国际放射防护委员会瑞典辐射防护机构

迄今为止,ICRP还没有发表过关于如何评价和管理非人类物种辐射效应的建议.现已经决定建立评价非人类物种辐射效应的体系,以填补辐射防护概念上的空白.拟建立的体系不是为了制定审管标准,而是为了提供指导,从而有助于审管部门和运营部门... 详细信息

迄今为止,ICRP还没有发表过关于如何评价和管理非人类物种辐射效应的建议.现已经决定建立评价非人类物种辐射效应的体系,以填补辐射防护概念上的空白.拟建立的体系不是为了制定审管标准,而是为了提供指导,从而有助于审管部门和运营部门证实自己遵守了现行的法律.ICRP将建立一套参考动植物及相关数据库,以便作为从根本上更多地认识和解释照射和剂量的关系、剂量和某些类型的效应关系的基础.这个概念类似于人类辐射防护所用的参考人概念,目的是作为计算和决策的依据.委员会已经设立了一个新的任务组,继续工作,以确定感兴趣的效应终点、ICRP要用的参考生物类型,以及一套用以评价和管理非人类物种辐射照射的参考剂量模型.

关键词： ICRP 非人类物种辐射效应评价框架参考剂量模型

Effects of vegetables and fruit with varying physical damage, fungal infection, and soil contamination on stability of aqueous ozone

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Food Bioscience 2022年第6期50卷 1758-1765页

作者： Sorivan Chhem-Kieth lars holm Rasmussen Mette Rosenfjeld Mogens larsen Andersen Department of Food Science University of CopenhagenFrederiksbergDenmark Department of Technology University College CopenhagenCopenhagenDenmark

The application of aqueous solutions of ozone for surface disinfection is an effective novel green technology with a potential for replacing the use of persistent chemicals in postharvest treatments. However, successful disinfection requires certain levels of ozone to be maintained throughout the process. The decay rates of aqueous ozone were found to vary with the presence of different fruit and vegetables commodities (apples, carrots, onions, celeriac, and pears). Pure aqueous ozone had a half-life of 3200 s, whereas the half-life of ozone was found to range with increasing cross-cut areas between 2177 and 291 s for apples, 573 and 345 s for carrots, 541 and 113 s for onions, 2800 and 253 s for pears, and 362 and 165 s for celeriac. With soil particles present, the ozone half-life dropped to 59 s for celeriac. Parallel measurements reported strong to moderate effect of soil particles (51–626 s, 10 g soil/L ozonated water), and naturally occurring fungi (850–2294 s, 0.25 g fungi mix/L ozonated water) on ozone half-life. In summary, presence of organic compounds, notably by damaged commodities, increase ozone decay and illustrate the need to correctly identify important ozone-depleting parameters, which is crucial for understanding the efficiency of ozone-based washing systems.

关键词： Postharvest cleaning Ozone decay Ozonated water

Acute effects of Helicobacter pylori extracts on gastric mucosal blood flow in the mouse

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World Journal of Gastroenterology 2009年第2期15卷 219-225页

作者： Johanna Henriksns Christer Atuma Mia Phillipson Stellan Sandler lars Engstrand Lena holm Department of Medical Cell Biology Uppsala University SE-751 23 Uppsala Sweden Department of Bacteriology Swedish Institute for Infectious Disease Control 171 82 Solna Sweden

AIM： To investigate the mechanisms underlying the reduction in gastric blood flow induced by a luminal water extract of Hellcobacter pylori （HPE）. METHODS： The stomachs of isoflurane-anesthetized mice were exteriorized, and the mucosal surface exposed. Blood flow was measured with the laserDoppler technique, and systemic arterial blood pressure monitored. C57BL/6 mice were exposed to water extract produced from Hpylori strain 88-23. To investigate the role of a nerveor iNOS-mediated pathway, we used intraluminal lidocaine and iNOS-/- mice. Blood flow response to the endogenous nitric oxide synthase inhibitor asymmetric dimethyl arginine （ADMA） was also assessed. RESULTS： In wild-type mice, HPE decreased mucosal blood flow by approximately 30%. This reduction was abolished in iNOS-deficient mice, and by pre-treatment with lidocaine. Luminally applied ADMA resulted in reduction in blood flow similar to that observed in wildtype mice exposed to HPE. CONCLUSION： A H py/ori water extract reduces gastric mucosal blood flow acutely through iNOS- and nerve-mediated pathways.

关键词： Gastric mucosal blood flow In vivo LaserDoppler flowmetry Mice Helicobacter pylori

Comparing corneal outcome between femtosecond laser-assisted cataract surgery and conventional phaco surgery in Fuchs’endothelial dystrophy patients:a randomized pilot study with 6mo follow up

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International Journal of Ophthalmology(English edition) 2021年第5期14卷 684-692页

作者： Therese Krarup Kathrine Rose Aurore Marie-Laurence AkpeMensah Morten la Cour lars Morten holm Department of Ophthalmology Rigshospitalet-Glostrup Valdemar Hansens Vej 1-23Glostrup 2600Denmark

AIM:To compare the corneal outcome in Fuchs’endothelial dystrophy(FED)patients between femtosecond laser-assisted cataract surgery(FLACS)and conventional phaco surgery(CPS).METHODS:This was a randomized controlled study comparing one eye surgery by FLACS and the contralateral eye operated by CPS(stop and chop technique)in FED *** corneal thickness,corneal light backscatter,corneal densitometry,and central corneal endothelial cell count and hexagonality(noncontact endothelial cell microscope),and corrected distance visual acuity(CDVA)were assessed preoperatively and at day 1,40,and 180 ***:Totally 31 patients(16 women)were *** day 40 postoperatively,the mean endothelial cell loss(ECL)was 23.67%by FLACS and 17.30%by CPS(P=0.53).At day 180 postoperatively,ECL was 25.58%in FLACS and 21.32%in CPS(P=0.69).Densitometry data in all layers and all annuli from anterior layer to posterior layer in annuli 0-2,2-6,6-10 and 10-12,total densitometry with all layers and all annuli was performed.A significant difference was found in 6-10(posterior layer)at day 1 with-1.42 grayscale units(GSU;95%CI:-2.66 to-0.19,P=0.02).In 10-12(anterior layer,central layer and all layers)at day 40 were significant different with 7.7(95%CI:1.89 to 13.50,P=0.009),3.97(95%CI:0.23 to 7.71,P=0.03),4.73 GSU(95%CI:0.71 to 8.75,P=0.02),*** the remaining parameters we found no difference between the two groups(P>0.05).Three CPS eyes suffered from corneal ***:There is no significant difference in corneal outcome between FLACS and *** cell density and pentacam corneal outcome may be inadequate as outcome parameters in FED patients.

关键词： cataract surgery femtosecond-assisted cataract surgery corneal endothelial cell loss central corneal thickness pentacam Fuchs’endothelial dystrophy

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乡村旅游与小城镇发展

旅游学刊 2011年第12期26卷 5-7页

作者： erik holm-Petersen Grontmijl Carl Bro咨询集团丹麦格洛斯楚普

在全世界，旅游业是发展最快的经济产业。本文探讨“乡村旅游”的本质及其对小城镇发展的作用。

关键词：小城镇发展乡村旅游城乡统筹旅游发展中国经济产业旅游业

The tensor embedding for a Grothendieck cosmos

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Science China Mathematics 2023年第11期66卷 2471-2494页

作者： Henrik holm Sinem Odabasi Department of Mathematical Sciences University of CopenhagenCopenhagen 02100Denmark Instituto de Ciencias Físicas y Matemáticas Universidad Austral de ChileValdivia 5090000Chile

While the Yoneda embedding and its generalizations have been studied extensively in the literature,the so-called tensor embedding has only received a little *** this paper,we study the tensor embedding for closed symmetric monoidal categories and show how it is connected to the notion of geometrically purity,which has recently been investigated in the works of Enochs et al.(2016)and Estrada et al.(2017).More precisely,for a Grothendieck cosmos,i.e.,a bicomplete Grothendieck category V with a closed symmetric monoidal structure,we prove that the geometrically pure exact category(V,ε■)has enough relative injectives;in fact,every object has a geometrically pure injective *** also show that for some regular cardinalλ,the tensor embedding yields an exact equivalence between(V,ε■)and the category ofλ-cocontinuous V-functors from Presλ(V)to V,where the former is the full V-subcategory ofλ-presentable objects in *** many cases of interest,λcan be chosen to be■0 and the tensor embedding identifies the geometrically pure injective objects in V with the(categorically)injective objects in the abelian category of V-functors from fp(V)to *** we explain,the developed theory applies,e.g.,to the category Ch(R)of chain complexes of modules over a commutative ring R and to the category Qcoh(X)of quasi-coherent sheaves over a(suitably nice)scheme X.

关键词： enriched functor exact category (pre)envelope (pure)injective object purity symmetric monoidal category tensor embedding Yoneda embedding